CN219436008U

CN219436008U - High-capacity cylindrical battery module

Info

Publication number: CN219436008U
Application number: CN202320361787.9U
Authority: CN
Inventors: 许之咏; 朱留彬; 尹沉沉
Original assignee: Zhejiang Aibeineng Technology Co ltd
Current assignee: Zhejiang Aibeineng Technology Co ltd
Priority date: 2023-03-02
Filing date: 2023-03-02
Publication date: 2023-07-28
Anticipated expiration: 2033-03-02

Abstract

The utility model belongs to the technical field of battery modules, and particularly relates to a high-capacity cylindrical battery module which comprises a plurality of columnar electric cores distributed in matrix, a first bracket arranged at one end of each columnar electric core, and a second bracket arranged at the other end of each columnar electric core, wherein the adjacent columnar electric cores are oppositely arranged in polarity; the columnar battery cell is clamped between the first bracket and the second bracket, the electrode positioned at the top of the columnar battery cell is sequentially connected through a plurality of first connecting aluminum sheets, and the electrode positioned at the bottom of the columnar battery cell is sequentially connected through a plurality of second connecting aluminum sheets; the first bracket comprises a bracket main body and a through hole formed in the bracket main body, wherein the through hole is provided with a space for accommodating the electrode of the columnar battery cell to pass through and blocking the columnar battery cell to pass through. The defect of the prior art is overcome, a plurality of columnar battery cores distributed in matrix are stably clamped through the first bracket and the second bracket, the assembly efficiency is high, and the vibration resistance and the impact resistance performance are high after grouping.

Description

High-capacity cylindrical battery module

Technical Field

The utility model belongs to the technical field of battery modules, and particularly relates to a high-capacity cylindrical battery module.

Background

At present, a large-capacity cylindrical battery cell (20000 mAh) is not provided with a general-purpose bracket, the number of general-purpose brackets of the general battery cell is generally less (usually 1-4), the efficiency of assembling a battery module by using the general-purpose bracket is low, and the vibration resistance and the impact resistance of the assembled battery module are poor, so that safety accidents are easy to cause.

Disclosure of Invention

The utility model aims to provide a high-capacity cylindrical battery module, which overcomes the defects of the prior art, stably clamps a plurality of columnar battery cores distributed in matrix through a first bracket and a second bracket, and has high assembly efficiency and high vibration resistance and impact resistance after grouping.

In order to solve the problems, the technical scheme adopted by the utility model is as follows:

a high-capacity cylindrical battery module comprises a plurality of columnar electric cores distributed in a matrix manner, a first bracket arranged at one end of each columnar electric core, and a second bracket arranged at the other end of each columnar electric core, wherein the adjacent columnar electric cores are oppositely arranged in polarity;

the columnar battery cell is clamped between the first support and the second support, the electrode positioned at the top of the columnar battery cell is sequentially connected through a plurality of first connecting aluminum sheets, and the electrode positioned at the bottom of the columnar battery cell is sequentially connected through a plurality of second connecting aluminum sheets.

Further, the first support includes the support main part, sets up the through-hole in the support main part, the through-hole has the electrode that holds the column electric core and passes through and block the space that the column electric core passed through, the mounting that a plurality of matrix distributions has been set firmly to the up end of support main part, and leaves the space that holds first aluminum sheet that connects between the mounting, the mounting is close to the one end of first aluminum sheet and has set firmly the location arch, and the both sides of first aluminum sheet that connects have seted up with the protruding complex constant head tank of location.

Further, one side of the first support, which is far away from the columnar battery cell, is provided with a first insulating sheet, one side of the first insulating sheet is adhered to the surfaces of the fixing piece and the first connecting aluminum sheet through insulating glue, and a plurality of square holes for welding the battery cell acquisition line are formed in the first insulating sheet.

Further, the second support includes outer frame, sets firmly in outer frame and interconnect fixed connection's holding ring, peg graft to the holding ring in the bottom of column electric core, set firmly two at least groups elastic bulge on the inner wall of holding ring, and the one end of elastic bulge and the surface butt of column electric core.

Further, a plurality of strip-shaped grooves which are arranged in a crossing way are formed in one side, far away from the columnar battery cell, of the second support, and the second connection aluminum sheet is placed in the groove.

Further, a second insulating sheet is adhered to the surface of one side, far away from the columnar battery cell, of the second support, and a plurality of square holes for welding battery cell acquisition wires are formed in the second insulating sheet.

Compared with the prior art, the utility model has the following beneficial effects:

according to the high-capacity cylindrical battery module, the plurality of columnar electric cores distributed in the matrix mode are stably clamped through the first bracket and the second bracket, so that the number of columnar electric cores which can be connected in series is increased, the application scene of the battery module is increased, and meanwhile, the vibration resistance and the impact resistance of the battery module are improved; the first connecting aluminum sheet and the second connecting aluminum sheet are correspondingly connected with the anode and the cathode, so that the series connection of the columnar battery cells is realized, and the assembly efficiency of the battery module is improved.

Drawings

Fig. 1 is a schematic view of a structure of a large-capacity cylindrical battery module.

Fig. 2 is an exploded structural view of a high-capacity cylindrical battery module.

Fig. 3 is a schematic structural view of a first bracket in a high-capacity cylindrical battery module.

Fig. 4 is a schematic structural view of a second holder in a high-capacity cylindrical battery module.

Fig. 5 is a schematic view illustrating an assembly structure of a first bracket in a large-capacity cylindrical battery module.

Fig. 6 is an enlarged schematic view of the structure at a in a large-capacity cylindrical battery module.

In the figure: 1. a first insulating sheet; 2. a first connection aluminum sheet; 3. a first bracket; 31. a holder main body; 32. a through hole; 33. a fixing member; 34. positioning the bulge; 4. a columnar cell; 5. a second bracket; 51. an outer frame; 52. a positioning ring; 53. an elastic protrusion; 54. a groove; 6. a second aluminum connecting sheet; 7. and a second insulating sheet.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

As shown in fig. 1-6, the high-capacity cylindrical battery module comprises a plurality of columnar cells 4 distributed in matrix, a first bracket 3 arranged at one end of the columnar cells 4, and a second bracket 5 arranged at the other end of the columnar cells 4, wherein the adjacent columnar cells 4 are oppositely arranged in polarity;

the columnar cell 4 is clamped between the first bracket 3 and the second bracket 5, the electrode positioned at the top of the columnar cell 4 is sequentially connected through a plurality of first connecting aluminum sheets 2, the electrode positioned at the bottom of the columnar cell 4 is sequentially connected through a plurality of second connecting aluminum sheets 6, the first connecting aluminum sheets 2 and the second connecting aluminum sheets 6 are fixedly connected with the electrode of the columnar cell 4 in a welding mode, and the two ends of the first connecting aluminum sheets 2 and the second connecting aluminum sheets 6 are respectively connected with opposite electrodes.

For the equipment of being convenient for, first support 3 includes support main part 31, sets up the through-hole 32 in support main part 31, and through-hole 32 have hold the electrode of column electric core 4 and pass through and block the space that column electric core 4 passed through, and the up end of support main part 31 has set firmly a plurality of matrix distribution's mounting 33, and leaves the space that holds first aluminum sheet 2 between the mounting 33, and the one end that mounting 33 is close to first aluminum sheet has set firmly location arch 34, and the both sides of first aluminum sheet 2 of connecting have seted up with location arch 34 complex constant head tank.

In order to improve the integrity of the module, one side of the first bracket 3, which is far away from the columnar battery cell 4, is provided with a first insulating sheet 1, one side of the first insulating sheet 1 is adhered to the surfaces of the fixing piece 33 and the first connecting aluminum sheet 2 through insulating glue, and a plurality of square holes for welding the battery cell acquisition line are formed in the first insulating sheet 1.

In order to fix the columnar battery cell 4, the second bracket 5 comprises an outer frame 51 and a positioning ring 52 which is fixedly arranged in the outer frame 51 and is fixedly connected with each other, the bottom end of the columnar battery cell 4 is inserted into the positioning ring 52, at least two groups of elastic protruding parts 53 are fixedly arranged on the inner wall of the positioning ring 52, and one ends of the elastic protruding parts 53 are abutted with the surface of the columnar battery cell 4.

A plurality of strip-shaped grooves 54 which are arranged in a crossing way are formed in one side, far away from the columnar battery cell 4, of the second bracket 5, and the second connecting aluminum sheet 6 is placed in the grooves 54.

A second insulating sheet 7 is adhered to the surface of one side, far away from the columnar battery cell 4, of the second bracket 5, and a plurality of square holes for welding battery cell acquisition wires are formed in the second insulating sheet 7.

In summary, according to the high-capacity cylindrical battery module, a plurality of columnar electric cores 4 are respectively embedded into a positioning ring 52 of a second bracket 5 according to a serial connection sequence, the columnar electric cores 4 are limited and fixed in the positioning ring 52 through elastic protruding parts 53 in the positioning ring 52, polarities between the serial connection are opposite, then the columnar electric cores 4 are fastened by a first bracket 3, after the columnar electric cores are fastened, the columnar electric cores 4 are connected with each other according to a positive electrode and a negative electrode in sequence according to the serial connection sequence, electrodes of the columnar electric cores 4 are welded with the first connecting aluminum sheets 2 by using laser welding equipment, and the first connecting aluminum sheets 2 are limited through positioning protrusions 34 on two sides; turning the battery module to the other side, putting the second connecting aluminum sheet 6 into the strip-shaped groove 54 in sequence in series, welding the electrode of the columnar cell 4 with the second connecting aluminum sheet 6 by using laser welding equipment, bonding the first insulating sheet 1 on the first bracket 3 after the battery module is welded, and bonding the second insulating sheet 7 below the second bracket 5; square holes formed in the first insulating sheet 1 and the second insulating sheet 7 are the welding positions of the acquisition wires of the battery cells, and the acquisition wires are arranged on the insulating sheet after being welded so as to achieve better insulation protection.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Claims

1. A high capacity cylindrical battery module, characterized in that: the battery comprises a plurality of columnar battery cells (4) distributed in a matrix manner, a first bracket (3) arranged at one end of each columnar battery cell (4) and a second bracket (5) arranged at the other end of each columnar battery cell (4), wherein the adjacent columnar battery cells (4) are oppositely arranged in polarity;

the columnar battery cell (4) is clamped between the first support (3) and the second support (5), electrodes positioned at the top of the columnar battery cell (4) are sequentially connected through the plurality of first connecting aluminum sheets (2), and electrodes positioned at the bottom of the columnar battery cell (4) are sequentially connected through the plurality of second connecting aluminum sheets (6).

2. The high-capacity cylindrical battery module according to claim 1, wherein: the first support (3) comprises a support main body (31) and a through hole (32) formed in the support main body (31), the through hole (32) is provided with a space for accommodating the electrode of the columnar battery cell (4) and blocking the passage of the columnar battery cell (4), a plurality of matrix-type distributed fixing pieces (33) are fixedly arranged on the upper end face of the support main body (31), a space for accommodating the first connecting aluminum sheet (2) is reserved between the fixing pieces (33), a positioning protrusion (34) is fixedly arranged at one end, close to the first aluminum sheet, of the fixing pieces (33), and positioning grooves matched with the positioning protrusions (34) are formed in two sides of the first connecting aluminum sheet (2).

3. The high-capacity cylindrical battery module according to claim 2, wherein: one side that column electric core (4) was kept away from to first support (3) is provided with first insulating piece (1), one side of first insulating piece (1) is glued through insulating glue and mounting (33) and first connection aluminum sheet (2) surface, a plurality of square holes that are used for welding electric core collection line have been seted up on first insulating piece (1).

4. The high-capacity cylindrical battery module according to claim 1, wherein: the second support (5) comprises an outer frame (51), and a positioning ring (52) which is fixedly arranged in the outer frame (51) and fixedly connected with each other, wherein the bottom end of the columnar battery cell (4) is inserted into the positioning ring (52), at least two groups of elastic protruding parts (53) are fixedly arranged on the inner wall of the positioning ring (52), and one ends of the elastic protruding parts (53) are in butt joint with the surface of the columnar battery cell (4).

5. The high-capacity cylindrical battery module according to claim 4, wherein: a plurality of strip-shaped grooves (54) which are arranged in a crossing mode are formed in one side, far away from the columnar battery cells (4), of the second support (5), and the second connecting aluminum sheet (6) is placed in the grooves (54).

6. The high-capacity cylindrical battery module according to claim 4, wherein: and a second insulating sheet (7) is adhered to the surface of one side, far away from the columnar battery cell (4), of the second bracket (5), and a plurality of square holes for welding a battery cell acquisition line are formed in the second insulating sheet (7).